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(No Model.)

H. B. ROSE. SPANNE'R WRENCH.

No. 593,543. Patented Nov. 9, 1897.

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UNITED. STATES PATENT OF ICE.

HERBERT B. ROSE, OF BUFFALO, NETV YORK, ASSIGNOR TO THE FORSYTI-I MANUFACTURING COMPANY, OF SAME PLACE.

SPANNER-WRENCH.

SPECIFICATION forming part of Letters Patent No. 593,543, datedNovember 9, 1897.

Application filed July 24, 1896. Serial No. 600,845. (No model.)

To all whom it may concern.-

Be it known that I, HERBERT 13. Ross, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New 5 York, have invented certain new and useful Improvements in Spanner-W'renches, of which the following is a specification.

My invention relates to an improved device for adjusting the cones of ball-bearings and other analogous purposes, and will be fully and clearlyhereinafter described an d claimed, reference being had to the accompanying drawings, in which Figure 1 represents a side elevation of my I improved device, showing the arms nearly closed. Fig. 2 also represents a side elevation, but with arms extended apart from each other. Fig. 3 is a top view looking in the direction of the arrow V, Fig. 2.

Referring to the drawings in detail, 1 and 2 represent the right and left arms, respectively; 3, the pivot bolt or pin for securing the said arms together at one end, so as to turn loosely thereon, and 5 and 6 the wrench pins or projections which extend out sidewise 0r laterally from the arms 1 and 2. It will be noticed by reference to Fig. 1 that the arms (when in the position shown in that figure) curve slightly outward and then inward from their pivoting-point, cross each other at about the point 7, and then curve toward each other again. By this means the arms can be opened slightly from each other by pressing against their outer edges between the pivoting-point 5 3 and their crossing-point 7, or they may be closed toward each other by pressing against their outer edges below the crossing-point 7.

It will thus be seen that although the arms are pivoted to each other at one end they can be either closed or opened to a limited degree suflicient for the purpose for which the tool is designed by the same closing movement of the hand.

If the tool be properly grasped by the hand,

it can be closed by the fingers applying the power to the portions below the crossing-point 7 or opened slightly by closing the palm against the edges of the portions above the crossing-point 7. In this manner the tool can be very quickly adjusted.

As the wrench pins or projections 5 and 6 are placed near the inner edge of the arms, they are in close proximity to each other when the arms are in the position shown in Fig. 1.

This device is adapted to adjust ball-bearings in which the cones are provided with two or more small depressions or holes.located on their outer face, the wrench-pins 5 and 6 fitting into the small depressions.

As this device is capable of quite an adjustment, it can be used for the crank-shaft bearin gs, hub-bearings, and head-bearings on a bicycle, and also for a variety of similar purposes where the distance between the depressions or holes varies and renders an adjustable wrench of this character necessary.

Although the arms turn very easily upon their pivot, the placing of the pins or projections in the depressions in the cone holds or locks the arms in the position they are then placed, and they are not released until the pins are removed from the depressions.

It will thus be seen that my improved device has all the advantages of a fixed spanner-wrench, with the additional advantage of 7 5 adj ustabi'lity.

The operation of the device is as follows: The arms 1 and 2 are adjusted so that the pins or projections 5 and 6 fit into the depressions or holes in the cone. The cone is then rotated upon the axle and the bearing adjusted in the well-known manner.

I claim as my invention 1. An adjustable spanner-wrench, consisting of two arms pivoted to each other at one end, and provided at the other with pins projecting from one side thereof, the said arms when closed together curving slightly outward and then inward from their pivotingpoint, across each other and slightly inward go again, so that pressure against their edges below their crossing-point will close them and pressure against their edges above their crossing-point will open them, as set forth.

2. An adjustable spanner-wrench, consist- 5 ing of two curved arms, pivoted together at one end and provided at the other with projecting pins or points, said pins or points extending from the faces of the said pins at approximately right angles, and adapted to fit the depressions in bicycle bearing-cases, the said arms being adapted to be moved toward or from each other by inward pressure against their edges, and thus adjusted.- to fit different bearing-cases, as set forth.

3. An adjustable spanner-wrench, consisting of the arms, 1, and 2, the pivot-pin, 3, and wrench-pins, 5, and 6, the said arms curving slightly outward and then inward; from their pivoting-point, crossing each other at the point, '7, and then curving toward each other again, substantially as described.

4:. As a new article of manufacture, an ad- 3 justing-tool, consisting of two arms loosely pivoted to each other at one end, and provided I at the other with wrench-pins, and adapted to'be adjusted to or from each other by inward pressure on their edges below their pivotal point, so that the said tool can be arranged to adjust different bearing cases or cones on a bicycle, in which the adjusting depressionsare at different distances from each other, as set forth.

HERBERT B. ROSE.

Witnesses:

JAMES SANGSTER, L. MI. SPONG. 

